CN105662463B - Automatic calibration method and system for scanning precision of ultrasonic probe - Google Patents
Automatic calibration method and system for scanning precision of ultrasonic probe Download PDFInfo
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Abstract
The invention provides an automatic calibration method and system for scanning precision of an ultrasonic probe, wherein the method comprises the following steps: transmitting pulse signals to the ultrasonic probe through a plurality of signal transmission channels, and respectively recording the transmitting time of the pulse signals passing through each signal transmission channel; after the pulse signal reaches the ultrasonic probe, the pulse signal is reflected by the ultrasonic probe to form a reflected signal; receiving reflected signals which return through each signal transmission channel and respectively correspond to the transmitted pulse signals, and respectively recording the receiving time of each reflected signal; acquiring compensation time difference of signal transmission in each transmission channel according to the transmitting time of the pulse signal and the receiving time of the reflected signal in each transmission channel; and automatically carrying out alignment compensation on each channel according to the compensation time difference. The invention improves the convenience and the use efficiency of the clinical diagnosis of the ultrasonic imaging equipment and improves the quality of the ultrasonic diagnosis image.
Description
Technical field
The invention belongs to ultrasonic diagnostic imaging field, it is related to a kind of automatic calibrating method of ultrasonic probe scanning precision and is
System.
Background technique
Supersonic imaging apparatus becomes because of many advantages such as its non-invasive, real-time, easy to operate, cheap
One of diagnostic tool being clinically most widely used.
As shown in connection with fig. 1, Fig. 1 is the basic composition block diagram of ultrasonic diagnostic equipment in the prior art, the ultrasonic imaging
Equipment is at least connected with ultrasonic probe by ultrasonic host and is formed, and the ultrasound host includes that transmitting module, receiving module, transmitting connect
Receive switch module, control and data processing module, host computer；The transmitting module is emitted by popping one's head according to specified time interval
Ultrasonic signal；The receiving module synthesizes wave beam by probe receives echo-signal and according to specified time interval, forms image
Data；The host computer shows image.
In the supersonic imaging apparatus operational process, the error of above-mentioned time interval will affect image quality, the time
Interval is mainly generated by electric pulse passage length, probe thickness, testee depth.
Existing supersonic imaging apparatus, such as：The supersonic imaging apparatus of above-mentioned example is ignored in actual application
The time interval that electric pulse passage length and probe thickness generate, or above-mentioned time interval is tested out using external equipment, into
One step, this calibration information is solidificated in supersonic imaging apparatus.
However, supersonic imaging apparatus is in actual application, time interval can also change because of many reasons.Example
Such as：Ultrasonic probe generates new time interval in actual use, because of its surface abrasion, deformation；Ultrasonic host and ultrasound are visited
Head is during cross-reference, difference between the electric pulse passage length of different hosts, it is produced go out new time interval；
The time interval that above-mentioned a variety of causes generates can not be handled by existing ultrasonic diagnostic equipment, and then influence image quality,
Have a significant impact for the efficiency of clinical use.
Summary of the invention
The purpose of the present invention is to provide the automatic calibrating methods and system of a kind of ultrasonic probe scanning precision.
One of in order to achieve the above-mentioned object of the invention, the automatic calibration of the ultrasonic probe scanning precision of an embodiment of the present invention
Method, the method includes：Emit pulse signal to ultrasonic probe by multiple signal transmission channels, and record passes through often respectively
The launch time of the pulse signal of a signal transmission channels；
After the pulse signal reaches the ultrasonic probe, reflection signal is reflected to form through the ultrasonic probe；
Reflection signal that is returning by each signal transmission channels and respectively corresponding transmitting pulse signal is received, and is divided
The receiving time of each reflection signal is not recorded；
It is obtained according to the receiving time of the launch time of pulse signal described in each transmission channel, the reflection signal each
The compensation time difference that signal transmits in a transmission channel；
Alignment compensation is carried out to each channel automatically according to the compensation time difference.
As the further improvement of an embodiment of the present invention, the method also includes：
For ultrasonic probe configuration and the matched acoustic criteria part of the ultrasonic probe；
After the pulse signal reaches the ultrasonic probe, controls the pulse signal and continue to be transferred to the acoustics mark
Quasi- part, and the reflection signal is reflected to form by the acoustic criteria part.
As the further improvement of an embodiment of the present invention, " according to the hair of pulse signal described in each transmission channel
Penetrate the time, the receiving time of the reflection signal obtains the compensation time difference that signal transmits in each transmission channel " it specifically includes：
The reception of the launch time of pulse transmission signals and the reflection signal in each signal transmission channels are obtained respectively
The time difference of time；
Obtain the maximum time difference in all signal transmission channels；
According to the time difference of each signal transmission channels and maximum time difference, the compensation of each signal transmission channels is obtained
Time difference.
As the further improvement of an embodiment of the present invention, " according to the compensation time difference to automatically to each channel
Carry out alignment compensation " it specifically includes：
In pulse signal emission process, the compensation time difference according to each signal transmission channels transmits each signal logical
The corresponding transmitting pulse signal in road carries out lag compensation；
In reflection signal receive process, the compensation time difference according to each signal transmission channels transmits each signal logical
The corresponding reflection signal in road carries out lead compensation.
As the further improvement of an embodiment of the present invention, the method also includes：
Timer is respectively configured for each signal transmission channels, the timer is for recording in each signal transmission channels
The time difference of the receiving time of the launch time of pulse transmission signals and the reflection signal；
When pulse signal transmitting, timer is opened, and when receiving reflection signal, timer is closed.
One of in order to achieve the above-mentioned object of the invention, the automatic calibration of the ultrasonic probe scanning precision of an embodiment of the present invention
System, the system comprises：Signal emission module, for emitting pulse letter to ultrasonic probe by multiple signal transmission channels
Number, and the launch time of the pulse signal by each signal transmission channels is recorded respectively；
Ultrasonic probe after the pulse signal reaches the ultrasonic probe, reflects to form reflection letter through the ultrasonic probe
Number；
Signal receiving module, for receiving being returned by each signal transmission channels and respectively corresponding transmitting pulse letter
Number reflection signal, and record respectively it is each it is described reflection signal receiving time；
Signal processing module is believed for the launch time of the pulse signal according to each transmission channel, the reflection
Number receiving time obtain the compensation time difference that signal in each transmission channel transmits；
According to the compensation time difference to automatically to each channel progress alignment compensation.
As the further improvement of an embodiment of the present invention, the system also includes：Acoustic criteria part, the acoustics mark
Quasi- part Matching installation is on the ultrasonic probe；
The signal emission module is also used to：After the pulse signal reaches the ultrasonic probe, the pulse is controlled
Signal continues to be transferred to the acoustic criteria part, and reflects to form the reflection signal by the acoustic criteria part.
As the further improvement of an embodiment of the present invention, the signal processing module is also used to：It obtains respectively each
The time difference of the receiving time of the launch time of pulse transmission signals and the reflection signal in signal transmission channels；
Obtain the maximum time difference in all signal transmission channels；
According to the time difference of each signal transmission channels and maximum time difference, the compensation of each signal transmission channels is obtained
Time difference.
As the further improvement of an embodiment of the present invention, in pulse signal emission process, passed according to each signal
The compensation time difference for passing channel carries out lag compensation to the corresponding transmitting pulse signal of each signal transmission channels；
In reflection signal receive process, the compensation time difference according to each signal transmission channels transmits each signal logical
The corresponding reflection signal in road carries out lead compensation.
As the further improvement of an embodiment of the present invention, the signal processing module further includes：Timing unit, it is described
Timing unit includes：The timer being respectively configured for each signal transmission channels；
The timer is for recording the launch time of pulse transmission signals and the reflection in each signal transmission channels
The time difference of the receiving time of signal；
When pulse signal transmitting, timer is opened, and when receiving reflection signal, timer is closed.
Compared with prior art, the beneficial effects of the invention are as follows：The automatic calibration of ultrasonic probe scanning precision of the invention
Method and system, the compensation time difference transmitted by signal in each transmission channel of real-time monitoring；Accurate monitoring current device produces
Raw time interval, and then alignment compensation is carried out to each channel automatically according to the compensation time difference；Further, overcome existing
There is the scanning error due to caused by the not timing variation of signal transmission channels length and ultrasonic probe thickness in technology, improves
The convenience and service efficiency of supersonic imaging apparatus clinical diagnosis, improve the quality of diagnostic ultrasound images.
Detailed description of the invention
Fig. 1 is the basic composition block diagram of the ultrasonic diagnostic equipment in the prior art provided in background of invention；
Fig. 2 is the flow chart of the automatic calibrating method for the ultrasonic probe scanning precision that an embodiment of the present invention provides；
Fig. 3 is the module signal of the automated calibration system for the ultrasonic probe scanning precision that an embodiment of the present invention provides
Figure.
Specific embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But embodiment is not intended to limit this
Invention, structure that those skilled in the art are made according to these embodiments, method or transformation functionally are wrapped
Containing within the scope of the present invention.
It should be noted that the automatic calibrating method for ultrasonic probe scanning precision of the invention is mainly used in ultrasound
Diagnostic device.
In the ultrasonic diagnostic equipment course of work, needs to send pulse signal and sent out to ultrasonic probe, and via ultrasonic probe
It is sent to determinand, further, pulse signal forms reflection signal by the surface reflection of the ultrasonic probe, back to ultrasound
Diagnostic device carries out subsequent processing, to diagnose to determinand.
In the above ultrasonic diagnostic equipment course of work, pulse signal is emitted in the receive process of reflection signal, signal
It needs to be transmitted by multiple signal transmission channels, in multiple signal transmission channels transmitting signal process, there are time interval,
Influence the detection accuracy of ultrasonic probe.
In actual application, kind of the pulse signal by every bars transmission channels according to ultrasonic diagnostic equipment
Class can be sent simultaneously, can also be sent according to certain preset rules interval, but no matter which kind of ultrasonic diagnostic equipment,
With the application of the invention, carrying out the automatic calibration of probe scanning precision, will will be described in detail below.
As shown in Figure 1, the automatic calibration side for ultrasonic probe scanning precision that Fig. 1 an embodiment of the present invention provides
Method, the method includes：
S1, emit pulse signal to ultrasonic probe by multiple signal transmission channels, and record passes through each signal respectively
The launch time of the pulse signal of transmission channels；It is anti-through the ultrasonic probe after the pulse signal reaches the ultrasonic probe
It penetrates to form reflection signal；
Reflection signal that is that S2, reception are returned by each signal transmission channels and respectively corresponding transmitting pulse signal, and
The receiving time of each reflection signal is recorded respectively.
In a preferred embodiment of the invention, in order to further increase the image quality of ultrasonic diagnostic equipment, visited for ultrasound
Head configuration and the matched acoustic criteria part of the ultrasonic probe；After the pulse signal reaches the ultrasonic probe, institute is controlled
It states pulse signal to continue to be transferred to the acoustic criteria part, and the reflection signal is reflected to form by the acoustic criteria part.
The surface of the acoustic criteria part is consistent with ultrasonic probe surface shape, for reflected impulse signal to form reflection
Signal.Acoustic reflection material can be used to be made for the acoustic criteria part, such as：The materials such as steel, silica gel are not done superfluous in detail herein
It states.
Under normal conditions, the outer surface of the reflecting surface and the ultrasonic probe of the acoustic criteria part is parallel to each other, with benefit
In reflection, and imaging precision is improved, is not described in detail herein.
Further, in an embodiment of the present invention, the automatic calibrating method of the ultrasonic probe scanning precision further includes：
S3, the launch time of the pulse signal according to each transmission channel, the receiving time for reflecting signal obtain
Take the compensation time difference that signal transmits in each transmission channel.
In a preferred embodiment of the invention, the step S3 is specifically included：
P1, connecing for launch time of pulse transmission signals in each signal transmission channels and the reflection signal is obtained respectively
Time difference between time receiving, to calibrate error caused by ultrasonic probe surface thickness difference and signal transmission channels difference in length.
In order to facilitate understanding, a specific example will be enumerated below and will be elaborated.
In the embodiment of the invention, by the launch time of the pulse signal by the transmitting of each signal transmission channels
With t1（n）It indicating, n indicates that any one value in time series, size are equal to the quantity of signal transmission channels, such as：Through
The launch time of the pulse signal of first signal transmission channels transmitting is spent with t1（1）It indicates, it is logical to pass through n-th of signal transmitting
The launch time of the pulse signal of road transmitting is with t1（n）It indicates, is not described in detail herein.Similarly, the correspondence pulse is believed
Number reflection signal receiving time with t2(n) it indicates, the meaning that n is represented is identical as above-mentioned example, each t2(n) and t1（n）One
One is corresponding, such as：The receiving time of the reflection signal returned by first signal transmission channels is with t2（1）It indicates, by n-th
The receiving time for the reflection signal that a signal transmission channels return is with t2（n）It indicates, is not described in detail herein.
Further, the launch time of pulse transmission signals and the reception for reflecting signal in each signal transmission channels
The time difference of time is respectively with Tc_1, Tc_2, Tc_3 ..., Tc_n；Wherein, Tc_n=t2(n)- t1（n）.
In a preferred embodiment of the invention, the step P1 further includes：
Timer is respectively configured for each signal transmission channels, the timer is for recording in each signal transmission channels
The time difference of the receiving time of the launch time of pulse transmission signals and the reflection signal；
When pulse signal transmitting, timer is opened, and when receiving reflection signal, timer is closed, in this way, passing through reading
It takes and the matched timer of induction signal transmission channels is read, it can know the time that signal is round-trip in current demand signal transmission channels
Difference is not described in detail herein.
Maximum time difference in P2, all signal transmission channels of acquisition.
It connects above-mentioned example to be described, in the specific example, search time difference Tc_1, Tc_2, Tc_3 ..., Tc_n are looked into
The maximum value in the time difference is looked for, and is indicated with Tc_max.
Various ways can be used in the lookup of maximum value in the time difference, such as：It is compared one by one from front to back, Huo Zhexian
It is grouped, then is compared one by one, is not described in detail herein.
P3, the time difference according to each signal transmission channels and maximum time difference, obtain each signal transmission channels
Compensate the time difference.
The compensation time difference of each signal transmission channels is equal to 1/2*（The each signal transmission channels of maximum time difference-when
Between it is poor）
It is expressed as follows with formula：△Tn=1/2*(Tc_max -Tc_n)
Wherein, △ Tn indicates the compensation time difference of each signal transmission channels, and Tc_max indicates maximum time difference, Tc_n table
Show the time difference of each signal transmission channels.
In an embodiment of the present invention, the method also includes：
S4, according to the compensation time difference to automatically to each channel carry out alignment compensation.
In a preferred embodiment of the invention, the step S4, specifically include：In pulse signal emission process, foundation
The compensation time difference of each signal transmission channels carries out lag compensation to the corresponding transmitting pulse signal of each signal transmission channels；
In reflection signal receive process, the compensation time difference according to each signal transmission channels is corresponding to each signal transmission channels
It reflects signal and carries out lead compensation.In this way, guaranteeing to reach simultaneously by the transmitting signal of each signal transmission channels tested
Target, and the reflection signal of measured target can also receive processing simultaneously by each signal transmission channels, to complete to calibrate.
In pulse signal emission process, the compensation time difference according to each signal transmission channels transmits each signal logical
The corresponding transmitting pulse signal in road carries out lag compensation and specifically includes：
Delay emission is carried out to the corresponding pulse signal in each channel according to the compensation time difference of each signal transmission channels,
Its delay emission time is equal to the compensation time of each signal transmission channels.
In reflection signal receive process, the compensation time difference according to each signal transmission channels transmits each signal logical
The corresponding reflection signal in road carries out lead compensation and specifically includes：
Superposition in advance is carried out according to the compensation time difference of each signal transmission channels reflection signal corresponding to each channel.
The superposition in advance can be temporal superposition, such as：To signal transmission channels n, in compensation time difference △ Tn
Afterwards, then start to receive reflection signal.
Certainly, in other embodiments of the invention, the superposition in advance may be the offset of signal waveform, that is, work as
After the reflection signal of all signal transmission channels all finishes receiving, one of reflection signal is remained stationary, other
Signal is reflected, does signal offset according to the compensation time difference, to guarantee through the reflection signal of each signal transmission channels by simultaneously
Processing, and then calibration is completed, it is not described in detail herein.
It should be noted that in other embodiments of the invention, it can also be by the time of each signal transmission channels
The poor time series that formed calibrates table, and the time series calibration table is { △ T1, △ T2, △ T3 ..., △ Tn }, when needs pair
When ultrasonic probe is calibrated, table is calibrated automatically to each channel progress alignment compensation, herein by inquiring the time series
It is not described in detail.
It is understood that in a specific embodiment of the invention, after each ultrasonic diagnostic equipment starting, to ultrasound
Probe precision is calibrated automatically, in this way, in favor of obtaining the image of high quality；Certainly, in other embodiments of the invention
In, it can also be spaced and ultrasonic probe precision is calibrated automatically, such as：After n times ultrasonic diagnostic equipment is opened at interval, to described
Ultrasonic probe precision is calibrated automatically, and N is the positive integer greater than 1, in this way, not doing herein superfluous in detail in favor of energy saving
It states.
As shown in connection with fig. 3, the automated calibration system packet in an embodiment of the present invention, for ultrasonic probe scanning precision
It includes：Signal emission module 100, ultrasonic probe 200, signal receiving module 300, signal processing module 400.
Further, in the preferred embodiment for the present invention, the system also includes：Acoustic criteria part 500.
Further, in the preferred embodiment for the present invention, signal receiving module 300 further includes：Timing unit 301.
In an embodiment of the present invention, signal emission module 100 is used for through multiple signal transmission channels to ultrasonic probe
200 transmitting pulse signals, and the launch time of the pulse signal by each signal transmission channels is recorded respectively；The pulse letter
After number reaching the ultrasonic probe 200, reflection signal is reflected to form through ultrasonic probe 200；Signal receiving module 300 is for receiving
Reflection signal that is being returned by each signal transmission channels and respectively corresponding transmitting pulse signal, and each institute is recorded respectively
State the receiving time of reflection signal.
In a preferred embodiment of the invention, in order to further increase the image quality of ultrasonic diagnostic equipment, visited for ultrasound
The matched acoustic criteria part 500 of first 200 configuration；After the pulse signal reaches ultrasonic probe 200, described in control
Pulse signal continues to be transferred to the acoustic criteria part 500, and reflects to form the reflection by the acoustic criteria part 500 and believe
Number.
The surface of the acoustic criteria part 500 is consistent with ultrasonic probe surface shape, for reflected impulse signal to be formed
Reflect signal.Acoustic reflection material can be used to be made for the acoustic criteria part 500, such as：The materials such as steel, silica gel, do not do herein
It is described in detail.
Under normal conditions, the outer surface of the reflecting surface of the acoustic criteria part 500 and the ultrasonic probe 200 is mutually flat
Row in favor of reflection, and improves imaging precision, is not described in detail herein.
Further, in an embodiment of the present invention, signal processing module 300 is used for according to each transmission channel
The launch time of pulse signal, the receiving time for reflecting signal obtain the compensation time that signal transmits in each transmission channel
Difference.
In a preferred embodiment of the invention, signal processing module 300 is specifically used for：It is logical that each signal transmitting is obtained respectively
The time difference of the receiving time of the launch time of pulse transmission signals and the reflection signal in road, to calibrate ultrasonic probe surface
Error caused by difference in thickness and signal transmission channels difference in length.
In order to facilitate understanding, a specific example will be enumerated below and will be elaborated.
In the embodiment of the invention, by the launch time of the pulse signal by the transmitting of each signal transmission channels
With t1（n）It indicating, n indicates that any one value in time series, size are equal to the quantity of signal transmission channels, such as：Through
The launch time of the pulse signal of first signal transmission channels transmitting is spent with t1（1）It indicates, it is logical to pass through n-th of signal transmitting
The launch time of the pulse signal of road transmitting is with t1（n）It indicates, is not described in detail herein.Similarly, the correspondence pulse is believed
Number reflection signal receiving time with t2(n) it indicates, the meaning that n is represented is identical as above-mentioned example, each t2(n) and t1（n）One
One is corresponding, such as：The receiving time of the reflection signal returned by first signal transmission channels is with t2（1）It indicates, by n-th
The receiving time for the reflection signal that a signal transmission channels return is with t2（n）It indicates, is not described in detail herein.
Further, the launch time of pulse transmission signals and the reception for reflecting signal in each signal transmission channels
The time difference of time is respectively with Tc_1, Tc_2, Tc_3 ..., Tc_n；Wherein, Tc_n=t2(n)- t1（n）.
In embodiment of the present invention, timing unit 301 includes：The timer being respectively configured for each signal transmission channels；
The timer is used to record connecing for launch time of pulse transmission signals in each signal transmission channels and the reflection signal
Time difference between time receiving；
When pulse signal transmitting, timer is opened, and when receiving reflection signal, timer is closed, in this way, passing through reading
It takes and the matched timer of induction signal transmission channels is read, it can know the time that signal is round-trip in current demand signal transmission channels
Difference is not described in detail herein.
Further, signal processing module 300 is also used to：Obtain the maximum time difference in all signal transmission channels.
It connects above-mentioned example to be described, in the specific example, search time difference Tc_1, Tc_2, Tc_3 ..., Tc_n are looked into
The maximum value in the time difference is looked for, and is indicated with Tc_max.
Various ways can be used in the lookup of maximum value in the time difference, such as：It is compared one by one from front to back, Huo Zhexian
It is grouped, then is compared one by one, is not described in detail herein.
Further, signal processing module 300 is also used to：When according to the time difference of each signal transmission channels and maximum
Between it is poor, obtain the compensation time difference of each signal transmission channels.
The compensation time difference of each signal transmission channels is equal to 1/2*（The each signal transmission channels of maximum time difference-when
Between it is poor）
It is expressed as follows with formula：△Tn=1/2*(Tc_max -Tc_n)
Wherein, △ Tn indicates the compensation time difference of each signal transmission channels, and Tc_max indicates maximum time difference, Tc_n table
Show the time difference of each signal transmission channels.
Further, in an embodiment of the present invention, signal processing module 300 is also used to：According to the compensation time difference
To automatically to each channel progress alignment compensation.
In a preferred embodiment of the invention, signal processing module 300 is specifically used for：In pulse signal emission process,
The compensation time difference according to each signal transmission channels lags the corresponding transmitting pulse signal of each signal transmission channels
Compensation；In reflection signal receive process, the compensation time difference according to each signal transmission channels is to each signal transmission channels
Corresponding reflection signal carries out lead compensation.In this way, guaranteeing to arrive simultaneously by the transmitting signal of each signal transmission channels
Up to measured target, and the reflection signal of measured target can also receive processing simultaneously by each signal transmission channels, thus complete
At calibration.
Signal processing module 300 is specifically included for carrying out lag compensation：
Signal processing module 300 believes the corresponding pulse in each channel according to the compensation time difference of each signal transmission channels
Number carry out delay emission, the delay emission time be equal to each signal transmission channels the compensation time.
In reflection signal receive process, signal processing module 300 carries out lead compensation and specifically includes：
Signal processing module 300 is believed according to the compensation time difference reflection corresponding to each channel of each signal transmission channels
Number carry out superposition in advance.
The superposition in advance can be temporal superposition, such as：To signal transmission channels n, in compensation time difference △ Tn
Afterwards, then start to receive reflection signal.
Certainly, in other embodiments of the invention, the superposition in advance may be the offset of signal waveform, that is, work as
After the reflection signal of all signal transmission channels all finishes receiving, one of reflection signal is remained stationary, other
Signal is reflected, does signal offset according to the compensation time difference, to guarantee through the reflection signal of each signal transmission channels by simultaneously
Processing, and then calibration is completed, it is not described in detail herein.
It should be noted that signal processing module 300 is also used to each signal in other embodiments of the invention
Time differences of transmission channels forms a time series and calibrates table, the time series calibration table be △ T1, △ T2, △ T3 ...,
△ Tn }, when needing to calibrate ultrasonic probe, by inquire the time series calibrate table automatically to each channel into
Row alignment compensation, is not described in detail herein.
In conclusion the automatic calibrating method and system of ultrasonic probe scanning precision of the invention, each by real-time monitoring
The compensation time difference that signal transmits in a transmission channel；The time interval that accurate monitoring current device generates, and then according to described
The time difference is compensated automatically to each channel progress alignment compensation；Further, overcome in the prior art due to signal transmission channels
The caused scanning error of the not timing variation of length and ultrasonic probe thickness, improves the side of supersonic imaging apparatus clinical diagnosis
Just property and service efficiency improve the quality of diagnostic ultrasound images.
For convenience of description, it is divided into various modules when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each module can be realized in the same or multiple software and or hardware when application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
It realizes by means of software and necessary general hardware platform.Based on this understanding, the technical solution essence of the application
On in other words the part that contributes to existing technology can be embodied in the form of software products, the computer software product
It can be stored in and save in medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that a computer equipment
（It can be personal computer, Information Push Server or the network equipment etc.）Execute each embodiment of the application or reality
Apply method described in certain parts of mode.
Device embodiments described above are only schematical, wherein the module as illustrated by the separation member
It may or may not be physically separated, the component shown as module may or may not be physics mould
Block, it can it is in one place, or may be distributed on multiple network modules.It can be selected according to the actual needs
In some or all of the modules realize the purpose of present embodiment scheme.Those of ordinary skill in the art are not paying creation
Property labour in the case where, it can understand and implement.
The application can be used in numerous general or special purpose computing system environments or configuration.Such as：Personal computer, information
Push server computer, handheld device or portable device, multi-processing module system, are based on micro process mould at laptop device
The system of block, set top box, programmable consumer-elcetronics devices, network PC, minicomputer, mainframe computer including to take up an official post
The distributed computing environment etc. of what system or equipment.
The application can describe in the general context of computer-executable instructions executed by a computer, such as program
Module.Generally, program module includes routines performing specific tasks or implementing specific abstract data types, programs, objects, group
Part, data structure etc..The application can also be practiced in a distributed computing environment, in these distributed computing environments, by
Task is executed by the connected remote processing devices of communication network.In a distributed computing environment, program module can be with
It is saved in medium positioned at the local and remote computer including saving equipment.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of automatic calibrating method of ultrasonic probe scanning precision, which is characterized in that the method includes：
Emit pulse signal to ultrasonic probe by multiple signal transmission channels, and record passes through each signal transmission channels respectively
Pulse signal launch time；
After the pulse signal reaches the ultrasonic probe, reflection signal is reflected to form through the ultrasonic probe；
Reflection signal that is returning by each signal transmission channels and respectively corresponding transmitting pulse signal is received, and is remembered respectively
Record the receiving time of each reflection signal；
Each biography is obtained according to the receiving time of the launch time of pulse signal described in each transmission channel, the reflection signal
The compensation time difference that signal transmits in defeated channel；
Alignment compensation is carried out to each channel automatically according to the compensation time difference；
Wherein, it " is obtained according to the receiving time of the launch time of pulse signal described in each transmission channel, the reflection signal
The compensation time difference that signal transmits in each transmission channel " specifically includes：
The receiving time of the launch time of pulse transmission signals and the reflection signal in each signal transmission channels are obtained respectively
Time difference；
Obtain the maximum time difference in all signal transmission channels；
According to the time difference of each signal transmission channels and maximum time difference, the compensation time of each signal transmission channels is obtained
Difference.
2. the automatic calibrating method of ultrasonic probe scanning precision according to claim 1, which is characterized in that the method is also
Including：
For ultrasonic probe configuration and the matched acoustic criteria part of the ultrasonic probe；
After the pulse signal reaches the ultrasonic probe, controls the pulse signal and continue to be transferred to the acoustic criteria
Part, and the reflection signal is reflected to form by the acoustic criteria part.
3. the automatic calibrating method of ultrasonic probe scanning precision according to claim 1 or 2, which is characterized in that " according to institute
The compensation time difference is stated to automatically to each channel progress alignment compensation " it specifically includes：
In pulse signal emission process, the compensation time difference according to each signal transmission channels is to each signal transmission channels pair
The transmitting pulse signal answered carries out lag compensation；
In reflection signal receive process, the compensation time difference according to each signal transmission channels is to each signal transmission channels pair
The reflection signal answered carries out lead compensation.
4. the automatic calibrating method of ultrasonic probe scanning precision according to claim 1 or 2, which is characterized in that the side
Method further includes：
Timer is respectively configured for each signal transmission channels, the timer is for recording pulse in each signal transmission channels
Emit the time difference of the launch time of signal and the receiving time of the reflection signal；
When pulse signal transmitting, timer is opened, and when receiving reflection signal, timer is closed.
5. a kind of automated calibration system of ultrasonic probe scanning precision, which is characterized in that the system comprises：
Signal emission module, for emitting pulse signal to ultrasonic probe by multiple signal transmission channels, and record is logical respectively
Spend the launch time of the pulse signal of each signal transmission channels；
Ultrasonic probe reflects to form reflection signal through the ultrasonic probe after the pulse signal reaches the ultrasonic probe；
Signal receiving module, for receiving being returned by each signal transmission channels and respectively corresponding transmitting pulse signal
Signal is reflected, and records the receiving time of each reflection signal respectively；
Signal processing module, launch time, the reflection signal for according to each transmission channel pulse signal
Receiving time obtains the compensation time difference that signal transmits in each transmission channel；
Alignment compensation is carried out to each channel automatically according to the compensation time difference；
Wherein, the signal processing module is also used to：The transmitting of pulse transmission signals in each signal transmission channels is obtained respectively
The time difference of the receiving time of time and the reflection signal；
Obtain the maximum time difference in all signal transmission channels；
According to the time difference of each signal transmission channels and maximum time difference, the compensation time of each signal transmission channels is obtained
Difference.
6. the automated calibration system of ultrasonic probe scanning precision according to claim 5, which is characterized in that the system is also
Including：Acoustic criteria part, the acoustic criteria part Matching installation is on the ultrasonic probe；
The signal emission module is also used to：After the pulse signal reaches the ultrasonic probe, the pulse signal is controlled
Continue to be transferred to the acoustic criteria part, and the reflection signal is reflected to form by the acoustic criteria part.
7. the automated calibration system of ultrasonic probe scanning precision according to claim 5 or 6, which is characterized in that
In pulse signal emission process, the compensation time difference according to each signal transmission channels is to each signal transmission channels pair
The transmitting pulse signal answered carries out lag compensation；
In reflection signal receive process, the compensation time difference according to each signal transmission channels is to each signal transmission channels pair
The reflection signal answered carries out lead compensation.
8. the automated calibration system of ultrasonic probe scanning precision according to claim 5 or 6, which is characterized in that the letter
Number processing module further includes：Timing unit, the timing unit include：The timing being respectively configured for each signal transmission channels
Device；
The timer is for recording the launch time of pulse transmission signals and the reflection signal in each signal transmission channels
Receiving time time difference；
When pulse signal transmitting, timer is opened, and when receiving reflection signal, timer is closed.
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| CN110115598A (en) * | 2019-06-19 | 2019-08-13 | 青岛市妇女儿童医院（青岛市妇幼保健院、青岛市残疾儿童医疗康复中心、青岛市新生儿疾病筛查中心） | It is a kind of can automatic daubing coupling agent ultrasonic probe control system and method |
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